XAFS Analysis of Ti and Ni Dissolution from Pure Ti, Ni-Ti Alloy, and SUS304 in Soft Tissues
XAFS Analysis of Ti and Ni Dissolution from Pure Ti, Ni-Ti Alloy, and SUS304 in Soft Tissues
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DOI：
10.1246/cl.2008.958
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发表时间：
2008-09-05
影响因子：
1.6
通讯作者：
Watari, Fumio
中科院分区：
文献类型：
--
作者：
Uo, Motohiro;Asakura, Kiyotaka;Watari, Fumio
将Ti （Ni-Ti合金）和不锈钢（SUS304）植入大鼠软组织6个月。采用荧光x射线吸收线结构（XAFS）分析了金属植入体周围组织中所含成分元素的化学状态。在周围组织中检测到氧化钛和镍水合物，这是由钛和镍的侵蚀引起的。组织中Ti和Ni的浓度分别为1-3 ppm和300 ppm。从而成功地确定了这些实用金属材料在体内的溶解条件和浓度。
Ti, a Ni-Ti alloy, and stainless steel (SUS304) were implanted in rat soft tissues for 6 months. The chemical states of the component elements contained in the tissues surrounding those metallic implants were analyzed by fluorescence X-ray absorption line structure (XAFS). Titanium oxide and a nickel aquo complex, which Would be Caused by the erosion of Ti and Ni, were detected in the Surrounding tissues. The concentrations of Ti and Ni in the tissues were 1-3 and 300 ppm, respectively. Thus, the dissolved conditions and concentrations of those practical metallic materials in vivo were successfully confirmed.